| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car.settings.network; |
| |
| import android.car.drivingstate.CarUxRestrictions; |
| import android.content.Context; |
| import android.database.ContentObserver; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.PersistableBundle; |
| import android.provider.Settings; |
| import android.telephony.CarrierConfigManager; |
| import android.telephony.SubscriptionManager; |
| import android.telephony.TelephonyManager; |
| |
| import androidx.preference.TwoStatePreference; |
| |
| import com.android.car.settings.R; |
| import com.android.car.settings.common.ConfirmationDialogFragment; |
| import com.android.car.settings.common.FragmentController; |
| import com.android.car.settings.common.PreferenceController; |
| |
| /** Business logic for toggling the roaming state. */ |
| // TODO: This preference should be available but unsearchable if subscription id is invalid. |
| public class RoamingPreferenceController extends PreferenceController<TwoStatePreference> implements |
| MobileNetworkUpdateManager.MobileNetworkUpdateListener { |
| |
| private final CarrierConfigManager mCarrierConfigManager; |
| private final RoamingStateChangeObserver mRoamingStateChangeObserver; |
| private TelephonyManager mTelephonyManager; |
| private int mSubId; |
| |
| private final ConfirmationDialogFragment.ConfirmListener mConfirmListener = |
| arguments -> setRoamingEnabled(true); |
| |
| public RoamingPreferenceController(Context context, String preferenceKey, |
| FragmentController fragmentController, CarUxRestrictions uxRestrictions) { |
| super(context, preferenceKey, fragmentController, uxRestrictions); |
| mCarrierConfigManager = context.getSystemService(CarrierConfigManager.class); |
| mRoamingStateChangeObserver = new RoamingStateChangeObserver( |
| new Handler(Looper.getMainLooper()), this::refreshUi); |
| mSubId = SubscriptionManager.INVALID_SUBSCRIPTION_ID; |
| } |
| |
| @Override |
| protected Class<TwoStatePreference> getPreferenceType() { |
| return TwoStatePreference.class; |
| } |
| |
| /** Set the subscription id for which the roaming toggle should take effect. */ |
| public void setSubId(int subId) { |
| mSubId = subId; |
| mTelephonyManager = TelephonyManager.from(getContext()).createForSubscriptionId(mSubId); |
| } |
| |
| @Override |
| protected void onStartInternal() { |
| mRoamingStateChangeObserver.register(getContext(), mSubId); |
| |
| ConfirmationDialogFragment.resetListeners( |
| (ConfirmationDialogFragment) getFragmentController().findDialogByTag( |
| ConfirmationDialogFragment.TAG), |
| mConfirmListener, |
| /* rejectListener= */ null); |
| } |
| |
| @Override |
| protected void onStopInternal() { |
| mRoamingStateChangeObserver.unregister(getContext()); |
| } |
| |
| @Override |
| protected void updateState(TwoStatePreference preference) { |
| preference.setEnabled(mSubId != SubscriptionManager.INVALID_SUBSCRIPTION_ID); |
| preference.setChecked( |
| mTelephonyManager != null ? mTelephonyManager.isDataRoamingEnabled() : false); |
| } |
| |
| @Override |
| protected boolean handlePreferenceChanged(TwoStatePreference preference, Object newValue) { |
| boolean isEnabled = (boolean) newValue; |
| if (isEnabled && isDialogNeeded()) { |
| getFragmentController().showDialog(getRoamingAlertDialog(), |
| ConfirmationDialogFragment.TAG); |
| return false; |
| } |
| |
| setRoamingEnabled(isEnabled); |
| return true; |
| } |
| |
| @Override |
| public void onMobileNetworkUpdated(int subId) { |
| setSubId(subId); |
| refreshUi(); |
| } |
| |
| private void setRoamingEnabled(boolean enabled) { |
| mTelephonyManager.setDataRoamingEnabled(enabled); |
| refreshUi(); |
| } |
| |
| private boolean isDialogNeeded() { |
| boolean isRoamingEnabled = mTelephonyManager.isDataRoamingEnabled(); |
| PersistableBundle carrierConfig = mCarrierConfigManager.getConfigForSubId(mSubId); |
| |
| // Need dialog if we need to turn on roaming and the roaming charge indication is allowed. |
| if (!isRoamingEnabled && (carrierConfig == null || !carrierConfig.getBoolean( |
| CarrierConfigManager.KEY_DISABLE_CHARGE_INDICATION_BOOL))) { |
| return true; |
| } |
| return false; |
| } |
| |
| private ConfirmationDialogFragment getRoamingAlertDialog() { |
| return new ConfirmationDialogFragment.Builder(getContext()) |
| .setTitle(R.string.roaming_alert_title) |
| .setMessage(R.string.roaming_warning) |
| .setPositiveButton(android.R.string.yes, mConfirmListener) |
| .setNegativeButton(android.R.string.no, /* rejectListener= */ null) |
| .build(); |
| } |
| |
| /** Observer that listens to data roaming change. */ |
| private static class RoamingStateChangeObserver extends ContentObserver { |
| |
| private Runnable mChangeListener; |
| |
| RoamingStateChangeObserver(Handler handler, Runnable changeListener) { |
| super(handler); |
| mChangeListener = changeListener; |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| super.onChange(selfChange); |
| mChangeListener.run(); |
| } |
| |
| /** Register this observer to listen for updates to {@link Settings.Global#DATA_ROAMING}. */ |
| public void register(Context context, int subId) { |
| Uri uri = Settings.Global.getUriFor(Settings.Global.DATA_ROAMING); |
| if (TelephonyManager.from(context).getSimCount() != 1) { |
| uri = Settings.Global.getUriFor(Settings.Global.DATA_ROAMING + subId); |
| } |
| context.getContentResolver().registerContentObserver(uri, |
| /* notifyForDescendants= */ false, /* observer= */ this); |
| } |
| |
| /** Unregister this observer. */ |
| public void unregister(Context context) { |
| context.getContentResolver().unregisterContentObserver(/* observer= */ this); |
| } |
| } |
| } |